general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 3 PID: 10207 Comm: syz-executor.0 Not tainted 5.7.0-rc6-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
RIP: 0010:selinux_socket_recvmsg+0x1e/0x40 security/selinux/hooks.c:4841
Code: e8 77 f9 1e fe 48 89 ef 5d eb b1 90 53 48 89 fb e8 67 f9 1e fe 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 0f 48 8b 7b 18 be 02 00 00 00 5b e9 7d fc ff ff e8
RSP: 0018:ffffc90002927a58 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90001d61000
RDX: 0000000000000003 RSI: ffffffff83543bb9 RDI: 0000000000000018
RBP: dffffc0000000000 R08: ffff888060798700 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffc90002927d78 R14: 000000000000004e R15: 0000000000000000
FS:  00007f13fc9f3700(0000) GS:ffff88802d100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c325000 CR3: 00000000628d8000 CR4: 0000000000340ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 security_socket_recvmsg+0x78/0xc0 security/security.c:2070
 sock_recvmsg+0x47/0x110 net/socket.c:902
 mptcp_recvmsg+0xb3b/0xd90 net/mptcp/protocol.c:891
 inet_recvmsg+0x121/0x5d0 net/ipv4/af_inet.c:838
 sock_recvmsg_nosec net/socket.c:886 [inline]
 sock_recvmsg net/socket.c:904 [inline]
 sock_recvmsg+0xca/0x110 net/socket.c:900
 __sys_recvfrom+0x1c5/0x2f0 net/socket.c:2057
 __do_sys_recvfrom net/socket.c:2075 [inline]
 __se_sys_recvfrom net/socket.c:2071 [inline]
 __x64_sys_recvfrom+0xdd/0x1b0 net/socket.c:2071
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45c819
Code: 1d b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f13fc9f2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002d
RAX: ffffffffffffffda RBX: 000000000074bfa0 RCX: 000000000045c819
RDX: 000000000000004e RSI: 0000000020000000 RDI: 0000000000000003
RBP: 000000000070fb00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f13fc9f36d4
R13: 0000000000000895 R14: 00000000006ed5c0 R15: 00000000004b238d
Modules linked in:
---[ end trace 6abc5cfb9a73bf18 ]---
RIP: 0010:selinux_socket_recvmsg+0x1e/0x40 security/selinux/hooks.c:4841
Code: e8 77 f9 1e fe 48 89 ef 5d eb b1 90 53 48 89 fb e8 67 f9 1e fe 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 0f 48 8b 7b 18 be 02 00 00 00 5b e9 7d fc ff ff e8
RSP: 0018:ffffc90002927a58 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90001d61000
RDX: 0000000000000003 RSI: ffffffff83543bb9 RDI: 0000000000000018
RBP: dffffc0000000000 R08: ffff888060798700 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffc90002927d78 R14: 000000000000004e R15: 0000000000000000
FS:  00007f13fc9f3700(0000) GS:ffff88802d100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c325000 CR3: 00000000628d8000 CR4: 0000000000340ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400